摘要:
A process of passivating a metal-gated CMOS structure in which a metal-gated CMOS structure is passivated in an atmosphere of molecular hydrogen at a temperature of between about 250° C. and about 500° C. and a pressure of at least about 200 Torr. The present process provides a lower interface state density than obtainable by prior art passivation processes.
摘要:
A method for fabricating a CMOS gate electrode by using Re, Rh, Pt, Ir or Ru metal and a CMOS structure that contains such gate electrodes are described. The work functions of these metals make them compatible with current pFET requirements. For instance, the metal can withstand the high hydrogen pressures necessary to produce properly passivated interfaces without undergoing chemical changes. The thermal stability of the metal on dielectric layers such as SiO2, Al2O3 and other suitable dielectric materials makes it compatible with post-processing temperatures up to 1000° C. A low temperature/low pressure CVD technique with Re2(CO)10 as the source material is used when Re is to be deposited.
摘要翻译:描述了通过使用Re,Rh,Pt,Ir或Ru金属制造CMOS栅电极的方法和包含这种栅电极的CMOS结构。 这些金属的工作功能使其与当前的pFET要求兼容。 例如,金属可以承受生产适当钝化界面而不经历化学变化所需的高氢气压力。 金属在介电层上的热稳定性如SiO 2,Al 2 O 3和其它合适的介电材料使其与后处理温度高达1000℃相兼容。具有Re2(CO)10作为源的低温/低压CVD技术 当Re沉积时使用材料。
摘要:
A method for fabricating a CMOS gate electrode by using Re, Rh, Pt, Ir or Ru metal and a CMOS structure that contains such gate electrodes are described. The work functions of these metals make them compatible with current pFET requirements. For instance, the metal can withstand the high hydrogen pressures necessary to produce properly passivated interfaces without undergoing chemical changes. The thermal stability of the metal on dielectric layers such as SiO2, Al2O3 and other suitable dielectric materials makes it compatible with post-processing temperatures up to 1000° C. A low temperature/low pressure CVD technique with Re2(CO)10 as the source material is used when Re is to be deposited.
摘要翻译:描述了通过使用Re,Rh,Pt,Ir或Ru金属制造CMOS栅电极的方法和包含这种栅电极的CMOS结构。 这些金属的工作功能使其与当前的pFET要求兼容。 例如,金属可以承受生产适当钝化界面而不经历化学变化所需的高氢气压力。 金属在介电层上的热稳定性如SiO 2,Al 2 O 3和其它合适的介电材料使其与后处理温度高达1000℃相兼容。具有Re2(CO)10作为源的低温/低压CVD技术 当Re沉积时使用材料。
摘要:
A method of depositing a SiNxCy liner on a porous low thermal conductivity (low-k) substrate by plasma-enhanced atomic layer deposition (PE-ALD), which includes forming a SiNxCy liner on a surface of a low-k substrate having pores on a surface thereon, in which the low-k substrate is repeatedly exposed to a aminosilane-based precursor and a plasma selected from nitrogen, hydrogen, oxygen, helium, and combinations thereof until a thickness of the liner is obtained, and wherein the liner is prevented from penetrating inside the pores of a surface of the substrate. A porous low thermal conductivity substrate having a SiNxCy liner formed thereon by the method is also disclosed.
摘要:
Methods of depositing a tantalum-nitride (TaN) diffusion barrier region on low-k materials. The methods include forming a protective layer on the low-k material substrate by performing plasma-enhanced atomic layer deposition (PE-ALD) from tantalum-based precursor and a nitrogen plasma in a chamber. The protective layer has a nitrogen content greater than its tantalum content. A substantially stoichiometric tantalum-nitride layer is then formed by performing PE-ALD from the tantalum-based precursor and a plasma including hydrogen and nitrogen. The invention also includes the tantalum-nitride diffusion barrier region so formed. In one embodiment, the metal precursor includes tantalum penta-chloride (TaCl5). The invention generates a sharp interface between low-k materials and liner materials.
摘要:
A method to deposit TaN by plasma enhanced layer with various nitrogen content. Using a mixture of hydrogen and nitrogen plasma, the nitrogen content in the film can be controlled from 0 to N/Ta=1.7. By turning off the nitrogen flow during deposition of TaN, a TaN/Ta bilayer is easily grown, which has copper diffusion barrier properties superior to those of a single Ta layer or a single TaN layer.
摘要翻译:一种用各种氮含量的等离子体增强层沉积TaN的方法。 使用氢和氮等离子体的混合物,膜中的氮含量可以从0到N / Ta = 1.7。 通过在TaN沉积期间关闭氮气流,容易生长TaN / Ta双层,其具有优于单个Ta层或单个TaN层的铜扩散阻挡性能。
摘要:
An integrated circuit is provided including an FET gate structure formed on a substrate. This structure includes a gate dielectric on the substrate, and a metal nitride layer overlying the gate dielectric and in contact therewith. This metal nitride layer is characterized as MNx, where M is one of W, Re, Zr, and Hf, and x is in the range of about 0.7 to about 1.5. Preferably the layer is of WNx, and x is about 0.9. Varying the nitrogen concentration in the nitride layer permits integration of different FET characteristics on the same chip. In particular, varying x in the WNx layer permits adjustment of the threshold voltage in the different FETs. The polysilicon depletion effect is substantially reduced, and the gate structure can be made thermally stable up to about 1000° C.
摘要翻译:提供了一种集成电路,其包括形成在衬底上的FET栅极结构。 该结构包括衬底上的栅极电介质和覆盖栅极电介质并与其接触的金属氮化物层。 该金属氮化物层的特征在于MN x,其中M是W,Re,Zr和Hf之一,x在约0.7至约1.5的范围内。 优选地,该层为W N x X,x为约0.9。 改变氮化物层中的氮浓度允许在同一芯片上集成不同的FET特性。 特别地,在WN SUB>层中改变x允许调节不同FET中的阈值电压。 多晶硅耗尽效应显着降低,并且栅极结构可以在高达约1000℃下热稳定。
摘要:
In an interconnect structure of an integrated circuit, a diffusion barrier film in a damascene structure is formed of a film having the composition TaNx, where x is greater than 1.2 and with a thickness of 0.5 to 5 nm.
摘要翻译:在集成电路的互连结构中,镶嵌结构中的扩散阻挡膜由具有组成TaN x x的膜形成,其中x大于1.2,厚度为0.5至5nm 。
摘要:
The present disclosure provides a concentrate for use in chemical mechanical polishing slurries, and a method of diluting that concentrate to a point of use slurry. The concentrate comprises abrasive, complexing agent, and corrosion inhibitor, and the concentrate is diluted with water and oxidizer. These components are present in amounts such that the concentrate can be diluted at very high dilution ratios, without affecting the polishing performance.
摘要:
The present disclosure provides a concentrate for use in chemical mechanical polishing slurries, and a method of diluting that concentrate to a point of use slurry. The concentrate comprises abrasive, complexing agent, and corrosion inhibitor, and the concentrate is diluted with water and oxidizer. These components are present in amounts such that the concentrate can be diluted at very high dilution ratios, without affecting the polishing performance.